# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

EAPI=4

inherit autotools elisp-common java-pkg-opt-2

MYP=ThePEG-${PV}

DESCRIPTION="Toolkit for High Energy Physics Event Generation"
HOMEPAGE="http://home.thep.lu.se/ThePEG/"
SRC_URI="http://www.hepforge.org/archive/thepeg/${MYP}.tar.bz2"
LICENSE="GPL-2"

SLOT="0"
KEYWORDS="~x86"
IUSE="emacs hepmc java lhapdf test zlib"

DEPEND="sci-libs/gsl
	dev-lang/perl
	emacs? ( virtual/emacs )
	hepmc? ( sci-physics/hepmc )
	java? ( >=virtual/jre-1.5 )
	lhapdf? ( sci-physics/lhapdf )
	zlib? ( sys-libs/zlib )
"
RDEPEND="${DEPEND}
	test? ( sys-process/time )"

S="${WORKDIR}/${MYP}"

pkg_setup() {
	echo
	elog "There is an extra option on package Rivet not yet in Gentoo:"
	elog "You can use the env variable EXTRA_ECONF variable for this:"
	elog "EXTRA_ECONF=\"--with-rivet=DIR\""
	elog "where DIR - location of Rivet installation"
	echo

	java-pkg-opt-2_pkg_setup
}

src_unpack() {
	unpack ${A}
	if use lhapdf && use test; then
		LHAPDFV=`best_version sci-physics/lhapdf | sed 's/.*-\(.*\)/\1/'`
		wget http://www.hepforge.org/archive/lhapdf/pdfsets/${LHAPDFV}/cteq6ll.LHpdf
		wget http://www.hepforge.org/archive/lhapdf/pdfsets/${LHAPDFV}/cteq5l.LHgrid
		wget http://www.hepforge.org/archive/lhapdf/pdfsets/${LHAPDFV}/GRV98nlo.LHgrid
		wget http://www.hepforge.org/archive/lhapdf/pdfsets/${LHAPDFV}/MRST2001nlo.LHgrid
	fi
}

src_prepare() {
	find -name 'Makefile.am' | xargs sed -i '1ipkgdatadir=$(datadir)/thepeg' \
		|| die "changing pkgdatadir name failed"
	sed -i '/dist_pkgdata_DATA = ThePEG.el/d' lib/Makefile.am \
		|| die "preventing install ThePEG.el in pkgdatadir failed"
	epatch "${FILESDIR}"/${P}-java.patch
	eautoreconf

	java-pkg-opt-2_src_prepare
}

src_configure() {
	econf \
		--disable-silent-rules \
		$(use_with hepmc hepmc "${EPREFIX}"/usr) \
		$(use_with java javagui) \
		$(use_with lhapdf LHAPDF "${EPREFIX}"/usr) \
		$(use_with zlib zlib "${EPREFIX}"/usr)
}

src_compile() {
	emake
	use emacs && elisp-compile lib/ThePEG.el || die
}

src_test() {
	emake LHAPATH="${WORKDIR}" check
}

src_install() {
	emake DESTDIR="${D}" install
	use emacs && elisp-install ${PN} lib/ThePEG.el lib/ThePEG.elc || die
	use java && java-pkg_newjar java/ThePEG.jar
}